<h:panelGroup xmlns="http://www.w3.org/1999/xhtml"
  xmlns:h="http://java.sun.com/jsf/html"
  xmlns:nxw="http://nuxeo.org/nxforms/runtime/widget"
  xmlns:nxu="http://nuxeo.org/nxweb/util"
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  <nxu:set var="tipsyGravity" value="tipsyGravitySW">
    <nxw:treeExplorerTabs mode="view" value="#{currentDocument}" />
  </nxu:set>

</h:panelGroup>